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Titolo:
An efficient pyridine- and oxadiazole-containing hole-blocking material far organic light-emitting diodes: Synthesis, crystal structure, and device performance
Autore:
Wang, CS; Jung, GY; Hua, YL; Pearson, C; Bryce, MR; Petty, MC; Batsanov, AS; Goeta, AE; Howard, JAK;
Indirizzi:
Univ Durham, Dept Chem, Sci Labs, Durham DH1 3LE, England Univ Durham Durham England DH1 3LE em, Sci Labs, Durham DH1 3LE, England Univ Durham, Sch Engn, Sci Labs, Durham DH1 3LE, England Univ Durham Durham England DH1 3LE gn, Sci Labs, Durham DH1 3LE, England Tianjin Inst Technol, Inst Mat Phys, Tianjin 300191, Peoples R China Tianjin Inst Technol Tianjin Peoples R China 300191 191, Peoples R China
Titolo Testata:
CHEMISTRY OF MATERIALS
fascicolo: 4, volume: 13, anno: 2001,
pagine: 1167 - 1173
SICI:
0897-4756(200104)13:4<1167:AEPAOH>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANTHRACENE-BASED DYES; ELECTROLUMINESCENT PROPERTIES; NAPHTHYLETHENYL SUBSTITUENT; CONJUGATED POLYMERS; EMISSIVE LAYER; THIN-FILMS; OLIGOTHIOPHENES; COPOLYMER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Bryce, MR Univ Durham, Dept Chem, Sci Labs, South Rd, Durham DH1 3LE, England Univ Durham South Rd Durham England DH1 3LE am DH1 3LE, England
Citazione:
C.S. Wang et al., "An efficient pyridine- and oxadiazole-containing hole-blocking material far organic light-emitting diodes: Synthesis, crystal structure, and device performance", CHEM MATER, 13(4), 2001, pp. 1167-1173

Abstract

In this paper, we focus on the synthesis and structure of the new bis(1,3,4-oxadiazole) system 2,5-bis[2-(4-tert-butylphenyl)-1,3,4-oxadiazol-5-yl]pyridine (PDPyDP). We have fabricated light-emitting diodes (LEDs) using poly[2-methoxy-5-(2-ethylhexoxy)-1,4-phenylene vinylene] (MEH-PPV) as the emissive material, with and without a thermally evaporated electron-injection/hole-blocking layer of either PDPyDP or its vinylene analogue (E)-1,2-bis[2-(4-tert-butylphenyl)-1,3,4-oxadiazol-5-yl]ethene (PDVDP) or its phenylene analogue 1,4-bis[2-(4-tert-butylphenyl)-1,3,4-oxadiazol-5-yl]benzene (PDPDP). PDPDP is the para isomer of OXD-7, which is a widely used molecular electron-transporting material. Electroluminescence spectra indicate that light is emitted only from the MEH-PPV layer. Using aluminum as the cathode, the bilayer LED with PDPyDP is considerably more efficient than the corresponding single-layer device or devices with PDVDP or PDPDP as the electron-injection layer.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/11/18 alle ore 05:42:49